[gobject-introspection] Add g_object_info_find_signal

[Colin Walters <walters src gnome org>]

commit 8bb515bb3abbc2576fed04f6bf0155dab9f016f4
Author: Colin Walters <walters verbum org>
Date:   Tue Oct 26 11:47:00 2010 -0400

    Add g_object_info_find_signal
    
    This matches g_object_info_find_method, and allows us to add indexing
    later.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=633204

 girepository/giobjectinfo.c   |   31 +++++++++++++++++++++++++++++++
 girepository/giobjectinfo.h   |    4 ++++
 tests/repository/gitestrepo.c |    7 +++++++
 3 files changed, 42 insertions(+), 0 deletions(-)
---
diff --git a/girepository/giobjectinfo.c b/girepository/giobjectinfo.c
index 03ed2a2..e1f0bc1 100644
--- a/girepository/giobjectinfo.c
+++ b/girepository/giobjectinfo.c
@@ -472,6 +472,37 @@ g_object_info_get_signal (GIObjectInfo *info,
 }
 
 /**
+ * g_object_info_find_signal:
+ * @info: a #GIObjectInfo
+ * @name: Name of signal
+ *
+ * Returns: Info for the signal with name @name in @info, or %NULL on failure.
+ */
+GISignalInfo *
+g_object_info_find_signal (GIObjectInfo *info,
+			   const gchar  *name)
+{
+  gint n_signals;
+  gint i;
+
+  n_signals = g_object_info_get_n_signals (info);
+  for (i = 0; i < n_signals; i++)
+    {
+      GISignalInfo *siginfo = g_object_info_get_signal (info, i);
+
+      if (g_strcmp0 (g_base_info_get_name (siginfo), name) != 0)
+	{
+	  g_base_info_unref ((GIBaseInfo*)siginfo);
+	  continue;
+	}
+
+      return siginfo;
+    }
+  return NULL;
+}
+
+
+/**
  * g_object_info_get_n_vfuncs:
  * @info: a #GIObjectInfo
  *
diff --git a/girepository/giobjectinfo.h b/girepository/giobjectinfo.h
index 11c1c5a..09e4bec 100644
--- a/girepository/giobjectinfo.h
+++ b/girepository/giobjectinfo.h
@@ -94,6 +94,10 @@ GIFunctionInfo *  g_object_info_find_method      (GIObjectInfo *info,
 gint              g_object_info_get_n_signals    (GIObjectInfo *info);
 GISignalInfo *    g_object_info_get_signal       (GIObjectInfo *info,
 						  gint          n);
+
+GISignalInfo *    g_object_info_find_signal      (GIObjectInfo *info,
+						  const gchar  *name);
+
 gint              g_object_info_get_n_vfuncs     (GIObjectInfo *info);
 GIVFuncInfo *     g_object_info_get_vfunc        (GIObjectInfo *info,
 						  gint          n);
diff --git a/tests/repository/gitestrepo.c b/tests/repository/gitestrepo.c
index 67af4ff..25b590f 100644
--- a/tests/repository/gitestrepo.c
+++ b/tests/repository/gitestrepo.c
@@ -41,6 +41,7 @@ main(int argc, char **argv)
   GITypelib *ret;
   GError *error = NULL;
   GIBaseInfo *info;
+  GIBaseInfo *siginfo;
   GType gtype;
   char *girdir;
 
@@ -73,6 +74,12 @@ main(int argc, char **argv)
   info = g_irepository_find_by_name (repo, "Gio", "ThisDoesNotExist");
   g_assert (info == NULL);
 
+  info = g_irepository_find_by_name (repo, "Gio", "FileMonitor");
+  g_assert (info != NULL);
+  siginfo = g_object_info_find_signal ((GIObjectInfo*) info, "changed");
+  g_assert (siginfo != NULL);
+  g_base_info_unref (siginfo);
+
   /* vfunc tests */
   {
     GIVFuncInfo *vfunc;